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Poecitoxin-1a from Poecilotheria subfusca spider, a new potent peptide blocker of the human Cav1.2 channel subtype
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 5.0 mg/mL Poecitoxin-1a, 90 % H2O, 10 % [U-100% 2H] D2O, 100 mM [U-100% 2H] sodium acetate 90% H2O/10% D2O 100 mM 5.0 1 atm 307 Bruker AVANCE III 700 2 2D 1H-1H TOCSY 5.0 mg/mL Poecitoxin-1a, 90 % H2O, 10 % [U-100% 2H] D2O, 100 mM [U-100% 2H] sodium acetate 90% H2O/10% D2O 100 mM 5.0 1 atm 307 Bruker AVANCE III 700 3 2D 1H-1H NOESY 5.0 mg/mL Poecitoxin-1a, 90 % H2O, 10 % [U-100% 2H] D2O, 100 mM [U-100% 2H] sodium acetate 90% H2O/10% D2O 100 mM 5.0 1 atm 307 Bruker AVANCE III 700 4 2D 1H-13C HSQC 5.0 mg/mL Poecitoxin-1a, 90 % H2O, 10 % [U-100% 2H] D2O, 100 mM [U-100% 2H] sodium acetate 90% H2O/10% D2O 100 mM 5.0 1 atm 307 Bruker AVANCE III 700 5 2D 1H-15N HSQC 5.0 mg/mL Poecitoxin-1a, 90 % H2O, 10 % [U-100% 2H] D2O, 100 mM [U-100% 2H] sodium acetate 90% H2O/10% D2O 100 mM 5.0 1 atm 307 Bruker AVANCE III 700
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 700
NMR Refinement Method Details Software molecular dynamics SYBYL
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations Conformers Calculated Total Number 40 Conformers Submitted Total Number 10 Representative Model 1 (fewest violations)
Computation: NMR Software # Classification Version Software Name Author 1 chemical shift assignment TopSpin Bruker Biospin 2 structure calculation SYBYL Tripos 3 refinement SYBYL Tripos 4 chemical shift assignment Top